"WITH READ ONLY" clause cannot be added to View Editor (4246798)

When creating a View with the "WITH READ ONLY" clause and then opening it in the Editor, the "WITH READ ONLY" clause is no longer displayed.

Steps to Reproduce:

1. Create a view with READ ONLY constraint:
Example:
CREATE VIEW d (dummy )
AS
select dummy from dual WITH READ ONLY
/

2. Double-click on View in DB Explorer

Expected results:
Editor displays the complete SQL code for the View

WORKAROUND:

1. In the View Editor, select the Options tab
2. Tick the check box  'Use With Clause'
3. Save the view